`mcp` subcommand missing

I installed linctl from brew on Linux. The `mcp` subcommand seems to be missing?

```
$ linctl mcp help
Error: unknown command "mcp" for "linctl"
Run 'linctl --help' for usage.

$ linctl --version
linctl version 0.1.8

$ type linctl
linctl is /home/linuxbrew/.linuxbrew/bin/linctl
```
